First of all, according to their own needs, the difference is in household or professional use, usually the difference between professional power tools and general household power tools is mainly in power, professional power tools are more powerful, and the power of general household tools is higher. Small, the input power is also small
The compact size and high-integration power tools are superior to the large-volume, single-function products in terms of ease of use. Therefore, choose a power tool that is rich in functions, small in size, simple in structure, and easy to store.
When purchasing a power tool, you need to purchase a package with a clear case and no broken power tools.
The purchased power tool looks normal, the plastic parts are complete, there are no obvious shadows and dents, no scratches or bumps, the relevant paint is smooth and beautiful, no defects, no oil stains and stains on the surface of the machine, the handle of the switch is flat, wire and cable The length is generally not less than 2M
The power tools are clear, complete, parameters, manufacturers, certificates, etc.
Hold the tool, turn on the power, frequently operate the switch, make the tool start frequently, observe whether the on/off function of the tool switch is reliable, whether it affects the TV/fluorescent lamp on the spot, etc., to judge whether the tool is equipped with anti-interference suppressor
Power tool running for 1 minute, feel the vibration condition and observe the reversing spark, whether the air inlet is normal, etc.
Select a power tool with noise within the allowable range
Select power tools that are easy to repair and easy to get accessories
Select the power tool to pay attention to the power supply voltage. Generally, the hand-held power tool needs to provide 22V mains power as the energy driver. Do not connect to the 380V industrial power, otherwise the machine will be damaged.